Dynamic configuration of radio link protocol in a telecommunications system

• US 6,088,342 A
• Filed: 05/05/1997
• Issued: 07/11/2000
• Est. Priority Date: 05/05/1997
• Status: Expired due to Term

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Mobile Phones UK Limited (Nokia Corporation)
• Inventors: Cheng, Mark, Honkasalo, Zhichun
• Primary Examiner(s): Vu, Huy D.
• Assistant Examiner(s): BOAKYE, ALEXANDER O
• Application Number:
  US08/851,010
• Time in Patent Office: 1,163 Days
• Field of Search: 370/209, 370/320, 370/342, 370/394, 370/395, 370/433, 370/441, 370/465, 370/470, 370/471, 370/472, 370/476, 379/58, 379/59, 455/33.1
• US Class Current: 370/320
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 1/1621 Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
• CPC Class Codes: H04L 1/165 Variable formats
• CPC Class Codes: H04L 1/1685 the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
• CPC Class Codes: H04L 1/1809 Selective-repeat protocols
• CPC Class Codes: H04L 69/24 Negotiation of communication capabilities
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A method and apparatus for dynamically configuring parameters of the radio link protocol layer in a telecommunications system. The method and apparatus allows dynamic configuration of the radio link protocol layer in order to optimize parameters for use with a particular data service. In an embodiment of the invention, radio link protocol control frames used for connection initialization include RLP parameter data. The RLP parameter data is exchanged between two communicating transceiving devices during connection initialization, and is used in each transceiving device to configure subsequently transmitted RLP data frames and transmit retransmission requests accordingly.

Claims

1. A method for operating a first transceiver in a telecommunication system having a second transceiver, wherein said first transceiver and second transceiver communicate according to a variable parameter transmission protocol, said method comprising the steps of:

receiving a message from the second transceiver, said message including control information, comprising a retransmission request value specifying a maximum number of retransmission requests to be transmitted from the first transceiver to the second transceiver requesting retransmission of at least one unreceived data frame of at least one data frame transmitted to said first transceiving device from said second transceiving device, said control information further comprising information indicating a length of at least one sequence number field included in each said at least one data frame;

receiving at least one received data frame of said at least one date frame;

determining said at least one unreceived data frame of said at least one data frame;

determining if less than said retransmission request value of retransmission requests has been transmitted for said at least one unreceived data frame;

and, if less than said retransmission request value of retransmission requests has been transmitted,

transmitting a retransmission request for said at least one unreceived data frame.

2. A method for communicating between a first transceiving device and a second transceiving device using a transmission protocol having at least one variable parameter, said method comprising the steps of:

transmitting first control information from the first transceiving device to the second transceiving device, said first control information comprising information indicating a length of a first at least one variable length nondata field in a first at least one data frame and a first retransmission requests allowed from said second transceiving device for data frames transmitted from said first transceiving device that are not received at said second transceiving device;

transmitting second control information from the second transceiving device to the first transceiving device, said second control information comprising information indicating a length of a second at least one variable length nondata field in a second at least one variable length nondata field in a second at least one data frame and a second transmission requests value specifying a maximum number of retransmission requests allowed from said first transceiving device for data frames transmitted from said second transceiving device that are not received at said first transceiving device;

storing first control information in the second transceiving device and the second control information in the first transceiving device; and

transmitting said first at least one data frame from the first transceiving device to the second transceiving device in accordance with said first control information and transmitting said second at least one data frame from the second transceiving device to the first transceiving device in accordance with said second control information.

3. The method of claim 2, wherein said step of transmitting said first at least one date frame comprises the steps of:

receiving a first plurality of data frames at said second transceiving device;

detecting, at said second transceiving device, at least one unreceived data frame of said first plurality of data frames;

determining if less than said first retransmission value of retransmission requests has been transmitted for said at least one unreceived data frame of said first plurality of data frames;

and, in response to a positive determination in said step of determining,

transmitting a retransmission request from said second transceiving device to said first transceiving device.

4. A method for communicating between a first transceiving device and a second transceiving device using a transmission protocol having at least one variable parameter, said method comprising the steps of:

transmitting first control information from the first transceiving device to the second transceiving device, said first control information comprising a first retransmission value specifying a maximum number of retransmission requests allowed from said second transceiving device for data frames transmitted from said first transceiving device that are not received at said second transceiving device;

transmitting second control information from the second transceiving device to the first transceiving device, said second control information comprising a retransmission value specifying a maximum number of retransmission requests allowed from said first transceiving device for data frames transmitted from said second transceiving device that not received at said first transceiving device;

storing the first control information in the second transceiving device and the second control information in the first transceiving device; and

subsequently, transmitting a first plurality of data frames from the first transceiving device to the second transceiving device;

receiving at least one received data frame of said first plurality of data frames at said second transceiving device;

detecting, at said second transceiving device, at least one unreceived data frame of said first plurality of data frames;

determining if less than said first retransmission value of retransmission requests has been transmitted for said at least one unreceived data frame of said first plurality of data frames;

and, in response to a positive determination in said step of determining,

transmitting a first retransmission request from said second transceiving device to said first transceiving device.

5. The method of claim 4, wherein said first control information further comprises information specifying a length of a first at least one variable length nondata field in said first at least one data frame, and wherein said second control information further comprises information indicating a length of a second at least one variable length nondata field in said second at least one data frame.

6. An apparatus for operation in a first transceiver of a telecommunication system having a second transceiver, wherein said first transceiver and second transceiver communicate according to a variable parameter transmission protocol, said apparatus comprising:

a receiver for receiving a message from the second transceiver, said message including control information, comprising a retransmission request value specifying a maximum number of retransmission requests to be transmitted from the first transceiver to the second transceiver requesting retransmission of at least one unreceived data frame of at least one data frame transmitted to said first transceiving device from said second transceiving device, said control information further comprising information indicating a length of at least one sequence number field included in each said at least one data frame;

a transmitter;

a memory device; and

a controller coupled to said receiver, said transmitter and said memory device, said controller for receiving said control information from said receiver according to said control information, storing said control information in said memory device, and processing said at least one data frame by determining at least one unreceived data frame of said at least one data frame, determining if less than said retransmission request value of retransmission requests has been transmitted for said at least one unreceived data frame, and if less than said retransmission request value of retransmission requests has been transmitted, initiating transmission of a retransmission request from said transmitter.

7. An apparatus for communicating between a first transceiving device and a second transceiving device using a transmission protocol having at least one variable parameter, said apparatus comprising:

means for transmitting first control information from the first transceiving device to the second transceiving device, said first control information comprising information indicating a length of a first at least one variable length nondata field in a first at least one data frame and a first retransmission request value specifying a maximum number of retransmission requests allowed from said second transceiving device for data frames transmitted from said first transceiving device that are not received at said second transceiving device;

means for transmitting second control information from the second transceiving device to the first transceiving device, said second control information comprising information indicating a length of a second at least one variable length nondata field in a second at least one variable length nondata field in a second at least one data frame and a second transmission request value specifying a maximum number of retransmission requests allowed from said first transceiving device for data frames transmitted from said second transceiving device that are not received at said first transceiving device;

means for storing the first control information in the second transceiving device and means for storing the second control information in the first transceiving device;

means for transmitting said first at least one data frame from the first transceiving device to the second transceiving device in accordance with said first control information and means for transmitting said second at least one data frame from the second transceiving device to the first transceiving device in accordance with said second control information.

9. The apparatus of claim 7, wherein said first control information further comprises information specifying a length of a first at least one variable length nondata field in said first at least one data frame, and wherein said second control information further comprises information indicating a length of a second at least one variable length nondata field in said second at least one data frame.

8. An apparatus for communicating between a first transceiving device and a second transceiving device using a transmission protocol having at least one variable parameter, said apparatus comprising:

means for transmitting first control information from the first transceiving device to the second transceiving device, said first control information comprising a first retransmission value specifying a maximum number of retransmission requests allowed from said second transceiving device for data frames transmitted from said first transceiving device that are not received at said second transceiving device;

means for transmitting second control information from the second transceiving device to the first transceiving device, said second control information comprising a retransmission value specifying a maximum number of retransmission requests allowed from said first transceiving device for data frames transmitted from said second transceiving device that not received at said first transceiving device;

means for storing the first control information in the second transceiving device and means for storing the second control information in the first transceiving device; and

means for transmitting a first plurality of data frames from the first transceiving device to the second transceiving device;

means for receiving at least one received data frame of said first plurality of data frames at said second transceiving device;

means for detecting, at said second transceiving device, at least one unreceived data frame of said first plurality of data frames;

means for determining if less than said first retransmission value of retransmission requests has been transmitted for said at least one unreceived data frame of said first plurality of data frames; and

means for transmitting a first retransmission request from said second transceiving device to said first transceiving device in response to a positive determination in said means for determining.

10. The method of claim 8, wherein said information further includes a retransmission request value specifying a maximum number of retransmission requests to be transmitted from said first transceiver to said second transceiver requesting retransmission of unreceived data frames of said at least one data frame, and wherein said step of processing further comprises the steps of determining at least one unreceived data frame of said at least one data frame, determining if less than said retransmission request value of retransmission requests has been transmitted for said at least one unreceived data frame, and if less than said retransmission request value of retransmission requests has been transmitted, initiating transmission of a retransmission request to the second transceiver from said transmitter.